Nut-lock.



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. AAAAAAAAAAAAAAAAAAAAAAAAA 2. 1,068,981 PatentedJuly 29,.1913.

COLUMBIA PLANOGk/\PH CO..WASH]NG c.

UNITED STATES PATEN T OFFICE.

BRANCH JOSEPH CARTER, OF EAST SIDE SAGINAW, MICHIGAN.

NUT-LOCK.

To all whom it may concern:

Be it known' that I, BRANGH J. OARTER, a citizen of the United States, residing at East Side Saginaw, in the county of Saginaw and State of Michigan, have invented new and useful Improvements in Nut-Locks, of which the following is a specification.

The general Object of this invention is to provide a locking clevice ,which is adapted to be applied to a nut and bolt to securely maintain said nut in locking engagement with the bolt and prevent the same from working loose by reason of the jar to which said bolt is subjected when used in connection with railroad rails.

In carrying outthe objects of the invention generally stated above, it-will be understood, of course, that the essential features thereof are susceptible to changes in details and structural arrangements, one preferred and practical embodiment being shown in the accompanying drawing, wherein:-

Figure 1 is a side elevation of the nut and bolt constructed in accordance with the invention. Fig. 2 is a vertical sectional view thercthrough. Fig. 3 is a perspective view of the nut used in connection with the invention. Fig. 1 is a erspective view of the locking plate used in connection with the invention. Fig. 5 is a perspective view of a locking key.

Referring more particularly to the accompanying drawing it will be seen that the invention comprises a bolt 6 having a head 7 said bolt being provided at its periphery with a longitudinal groove 8 which extends the major portion of the length of said bolt.

The nut 9 used in connection with this invention is provided with a central threaded Opening 10 adapted to receive the bolt 6, said Opening being recessed at 11 to provide a g-oove which extends throughout the thickness of said nut. lVhen the nut is in position upon the bolt the groove 11 thereof and the groove 8 of the bolt are adapted to receive one arm of a substantially L-shaped locking key 12, the other arm of which abuts against the outer face of the nut 9, thereby preventing further turning of said nut upon the bolt.

Specification of Letters Patent.

Application filed fMay 2-4, 1912.

Patented July 29, 1913. Serial No. 699,425.

The locking key 12 is held in its locking position by a locking plate 13 which is aclapted to engage the arm of the locking key 12 which abuts against the outer face of the nutancl which is secured there-to by means of a rivet 14. The locking plate 13 eXtends transversely of the key 12 so as to overlie the outer face of the nut and is provided 'at its extremities with laterally extencling wings 15 which engage adjacent sides of the nut 9 at their extremities with inturned fianges 16 adapted to engage longitudinal grooves 17 formed in the sides of said nut. It will be understood of course that the locking plate 13 is made of suitable netal having suflicient flexibility in order to be readily applied to the nut.

From the foregoing description it will be Obvious that the invention contemplates providing a nut lock which is simple in construction, durable, and effective in carrying out the purpose for which it is designed.

l What is claimed is A nut lock comprising a bolt having longitudinally extending groove therein, a nut formed with a bolt Opening and a groove contiguous to said Opening, two of the opposing sides of the nut being formed with recesses, a substantially L-shaped key having a long arm and a short arm, the long arm fitting and coperating with both the groove in the bolt and the groove in the nut the short arm having a length less than the m'inimum radial length of the nut beyond the bolt Opening and overlying and bearing throughout its length against the face of said nut, and a locking plate secured to the short arm of the key and having inturned terminals to coperate with the recesses in the sides of the nut, whereby the locking plate is spaced throughout its length from the face of the nut beyond the groove.

In testimony whereof I aflix my signature in presence of two witnesses.

BRANCH JOSEPH OARTER.

Witnesses:

JAcoB N. Fnosr, WILLIAM AGARE.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of I'atents Washington, D. C." 

